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need help, student

Im taking my first class in C++ and im having a hard time understanding it all, ive been stuck on this problem for some time now, can anyone give me a clue what e stands for in purple and how to react to the % sign on the question lime? Thanks again

Im taking my first class in C++ and im having a hard time understanding it all, ive been stuck on this problem for some time now, can anyone give me a clue what e stands for in purple and how to react to the % sign on the question lime? Thanks again

Modulo isn't the same in all languages, but I can't think of a C based language that doesn't use % as modulo. Always check the language basics documentation as they will indicate what the arithmetic and bitwise operations are (which I find are the ones that change the most). For example, in visual basic you use the Mod operator. Unfortunately implementation of modulo also changes slightly between languages.
The 'e' in this example isn't euler. Its exponent, so this is a block written an scientific notation. 0.3e+1 is the same as 3.0.

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